Practice Test 1 Flashcards

1
Q

T/f: In type 2 diabetes the adipocytes of a person may become unable to recognize insulin as a signal for glucose uptake from the blood.

A

Ture

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2
Q

T/f: Optimal glucose absorption by brain cells requires the presence of insulin

A

False

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3
Q

What hormone is made by the pineal glad that promotes the sleep phase of our circadian rhythm

A

Melatonin

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4
Q

T/f: as a second messenger, inositol triphosphate (IP3) causes the opening of calcium channels and results with the contraction of specific smooth muscle cells

A

True

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5
Q

Which type of hormone affects only the cells adjacent to the one that created it?

A

Paracrine

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6
Q

If oxytocin and prostaglandin both promote contraction of the uterus at birth. The activities of the two would be ___________ relative to each other

A

Synergistic

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7
Q

calcium rich kidney stones might be expected to occur in the ______ was hyperactive and caused high blood levels of calcium (hypercalcemia)

A

Parathyroid glands

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8
Q

T/f: if you produce a large amount of cortisol, you would probably observe an increase in you blood glucose and a reduction in the amount of glycogen in your liver

A

True

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9
Q

If you had kidney failure and were in need of a transplant and dialysis, which hormone could help make up for chronic anemia?

A

erythropoietin

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10
Q

T/f: Hyperthyroid activity (excess T3) could easily explain why a person had an anorexic-like appearance and was always warm to the touch.

A

True

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11
Q

Which hormone promotes growth and other energy demanding reactions in body?

A

Thyroxine, Insulin, growth hormone

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12
Q

What specific adrenergic receptor causes the heart to beat more forcefully during stressful situations like this test?

A

Beta 1

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13
Q

When a hormone like epinephrine binds its alpha-1 receptor, a _________ is released inside the target cell that stimulates phospholipase-C to produce inositol triphosphate (IP3).

A

G-protein

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14
Q

Which hormone relies on an enzyme called tyrosine kinase to regulate the movement of glucose into an adipocyte?

A

Insulin

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15
Q

Which hormone is produced in an inactive state (pro-hormone) and clipped inside a Beta-cell making it active prior to release into the blood?

A

Insulin

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16
Q

What may occur because a diabetic cannot produce insulin

A

Polyuria, Polydipsia, Polyphagia

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17
Q

Which hormone rapidly decreases plasma calcium, especially in infants?

A

Calcitonin

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18
Q

Thyroxin is stored in the follicles of the thyroid gland in a fluid called _________.

A

Colloid

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19
Q

T/f: The adrenal medulla produces sex-steroids, glucocorticoids and mineralocorticoids, and the adrenal cortex produces catecholamines like epinephrine and norepinephrine.

A

False

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20
Q

T/f: Stress stimulates the secretion of adrenocorticotropic hormone (ACTH) which increases the amount of cortisol you produce.

A

True

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21
Q

Which of the following hormones has the least in common with the others?
a) Glucagon
b) Aldosterone
c) Erythropoietin
d) Vasopressin (ADH)

A

Glucagon

22
Q

What hormone allows the heart to lower blood pressure?

A

Atrial naturetic factor

23
Q

_________ is a pancreatic hormone that utilizes cyclic AMP as a second messenger to signal hunger in the liver cells.

A

Glucagon

24
Q

T/f: Fat soluble hormones (i.e. testosterone) pass through the plasma membrane easily, while water soluble hormones (i.e. epinephrine) cannot.

A

True

25
Q

Which type of diabetes is almost always associated with an absence of beta cells in pancreatic islets?

A

Type 1

26
Q

A water soluble hormone called ______ is produced by the adrenal ________ and can also be used as a neurotransmitter to help you manage stress.

A

Epinephrine, medulla

27
Q

The first step in hemostasis is what?

A

Vasospasm

28
Q

Testosterone and progesterone have _______ as the base of their chemical structure.

A

Cholesterol

29
Q

The breakdown of a clot is referred to as______________

A

Thrombolysis

30
Q

Which of the following allows your body to store iron (Fe++) in your liver?

A

Apoferritin

31
Q

________ is a particle in the blood that carries triglycerides from Dr. Wilson’s intestine to his body after eating a nasty pile of fried potatoes and sausage for breakfast.

A

Chylomicron

32
Q

During starvation, children often times are unable to produce enough ________ and Kwashiorkor (ascites) develops when fluids accumulate in their abdomen giving them a “pot-bellied” appearance

A

Albumen

33
Q

A low levels of oxygen in a tissue is called what?

A

Hypoxia

34
Q

What could increase your blood volume or hematocrit?

A

Injection of erythropoietin, Receive a blood transfusion

35
Q

T/f:The typical female hematocrit is about 47% and a typical male hematocrit is about 42%.

A

False, Female 42%, Male 47%

36
Q

T/f: EDTA and sodium citrate are chemicals that prevent blood clotting in collected blood samples by removing the calcium

A

True

37
Q

What could increase the packed cell volume (hematocrit) of a person’s blood?

A

Massive dehydration, severe hyperglycemia, excess erythropoietin, removal of excess plasma

38
Q

If a small blood sample in a capillary tube was centrifuged, you would want to examine the ______ to look to see if the person had too may white blood cells.

A

Buffy coat

39
Q

Which of the following formed elements HAS a nucleus?
a) Platelet b) Red blood cell c) White blood cell d) A and B

A

White blood cells

40
Q

If a person weighed 220 pounds (100 kilograms) they would probably have about _________ liters of blood if they experienced massive exsanguination and LOST TWO LITERs of blood prior to the completion of hemostasis.

A

6 liters

41
Q

______ and ________ in the spleen and liver help break up old red blood cells after about 120 days.

A

Macrophages, Narrow sinusoids

42
Q

Which type of anemia could occur if you rapidly lost two liters of blood?

A

Hemorrhagic

43
Q

The ________ clotting cascade is initiated (started) when platelets come in contact with collagen in the wall of the blood vessel

A

Intrinsic

44
Q

What plasma protein becomes “sticky” after thrombin acts upon it near the end of the clotting cascade?

A

Fibrinogen

45
Q

Serum has had what material removed?

A

Fibrinogen

46
Q

Which of these is a granulocyte associated with protection from parasites?
a) Monocyte b) Lymphocyte c) Eosinophil d) Red blood cell

A

Eosinophil

47
Q

Name a type of hormone that consists of a fatty acid

A

Prostaglandins like thromboxane

48
Q

Tyrosine kinase adds what functional group to the hydroxyl on the amino acid tyrosine?

A

Phosphate

49
Q

what is one hormone produced by the hypothalamus?

A

Oxytocin; involved in social bonding and childbirth

50
Q

What is one hormone produced by the posterior pituitary?

A

Oxytocin; posterior pituitary stores two hormones, both synthesized in the hypothalamus

51
Q

What is one hormone produced by the anterior pituitary?

A

Prolactin; protein hormone, similar to growth hormone